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Finding the Fourth Proportional to 58,288.68, 87,462.18 and 28,671.84

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Solution

The fourth proportional to 58,288.68, 87,462.18 and 28,671.84 is: 43,022.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,288.68 : 87,462.18 = 28,671.84 : x
  2. Step 2: Convert to fraction form
    58,288.68/87,462.18 = 28,671.84/x
  3. Step 3: Cross multiply
    58,288.68x = 87,462.18 × 28,671.84
  4. Step 4: Simplify right side
    58,288.68x = 2,507,701,631.01
  5. Step 5: Solve for x
    x = 2,507,701,631.01/58,288.68
  6. Step 6: Final answer
    x = 43,022.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.